Electrical connection device and lighting system for a sectional door

ABSTRACT

An electrical connection device connects to a sectional door, the sectional door having a plurality of connected panels which roll along left and right tracks which are connected to a structure, the sectional door is positionable to a closed position and to an open position. The electrical connection device includes a slide which carries a reciprocating electric contactor. A housing has a slot, a proximal end and an opposite distal end. The slide slides along the slot in the housing. A spring in the housing biases the slide toward the distal end of the housing. The housing is connectable to either the left track or to the right track of the sectional door.

CROSS REFERENCE TO RELATED APPLICATION

This application is a Continuation-In-Part of and claims the filing benefit under 35 U.S.C. § 120 of application Ser. No. 16,042,471, filed Jul. 23, 2018, which is hereby incorporated by reference.

Also referenced without claiming the filing benefit is application Ser. No. 15/629,245 now U.S. Pat. No. 9,976,738, which is hereby incorporated by reference.

TECHNICAL FIELD

The present invention pertains generally to sectional doors, and more particularly to a device and lighting system for a sectional door.

BACKGROUND OF THE INVENTION

Sectional doors are well known in the art, and consist of several hinge-connected panels which slide from a closed vertical position to an open horizontal overhead position. Each panel has rollers on its side edges which move in door tracks mounted to a structure. Sectional doors are typically used in fixed structures such as home garages and commercial buildings, and also in mobile structures such as trucks and delivery vans. A motorized opening and closing mechanism can be connected near the top of the door to effect the opening and closing action. A problem however exists with sectional doors. When the door is in the open horizontal overhead position, the door blocks light from light fixtures which are mounted on the ceiling of the structure. U.S. Pat. No. 9,976,738 (which is hereby included by reference) discloses a lighting system which attaches to a sectional door and solves the aforementioned problem.

Some sectional doors do not have power openers, but rather are manually opened and held open with a large spring. Such manual sectional doors are frequently found in delivery trucks, but can also be used in other structures. A problem exists when these doors are opened; the doors can overshoot before settling back into the open position. The overshoot would cause the movable electric contactor to forcefully collide with the fixed electric contactor and result in mechanical damage to the contactors and associated components.

BRIEF SUMMARY OF THE INVENTION

FIGS. 1-16 and the associated description disclose a lighting system for a sectional door. FIGS. 17-32 and the associated description disclose an apparatus, system, and method for connecting a wiring harness to the sectional door.

FIGS. 33-47 disclose the present invention which is directed to an electrical connection device and lighting system for a sectional door. The present invention solves the aforestated problem with manually opened sectional doors by replacing the fixed electric contactor with a reciprocating (floating) electric contactor which accommodates the overshoot of the sectional door. The reciprocating electric contactor is spring biased and moves back and forth with the motion of the door. This eliminates the risk of mechanical damage, and ensures that the reciprocating electric contactor is in constant with the movable electric contactor on the door.

In accordance with an embodiment, an electrical connection device for a sectional door is disclosed. The sectional door has a plurality of connected panels which roll along left and right tracks which are connected to a structure. The sectional door is positionable to a closed position and to an open position. The electrical connection device includes a slide. A reciprocating electric contactor is connected to the slide. A housing carries the slide, the housing has a proximal end and an opposite distal end, the housing includes a spring which biases the slide toward the distal end of the housing, the housing is connectable to either the left track or to the right track of the sectional door.

In accordance with another embodiment, the housing has a tubular body with a longitudinal slot. The slide has a cylindrical body which is shaped and dimensioned to slide within the tubular body.

In accordance with another embodiment, the housing has a longitudinal axis. The housing is connectable to the left track or to the right track so that the longitudinal axis is parallel to the left track or to the right track.

In accordance with another embodiment, the slide has a neck which is shaped and dimensioned to be received by and slide along the longitudinal slot.

In accordance with another embodiment, the spring is a compression spring.

In accordance with another embodiment, the housing is positionable and lockable to a desired position along either the left track or the right track.

Other embodiments, in addition to the embodiments enumerated above, will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the electrical connection device and system for a sectional door.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an elevation view of the inside of a prior art sectional door showing the door in a closed substantially vertical position;

FIG. 2 is a cross sectional view along the line 2-2 of FIG. 1 showing the sectional door in an open substantially horizontal overhead position;

FIG. 3 is an elevation view of the inside of the prior art sectional door with a lighting system installed;

FIG. 4 is a cross sectional view along the line 4-4 of FIG. 3 showing the sectional door in an open substantially horizontal overhead position with the lighting system installed;

FIG. 5 is an enlarged view of area 5 of FIG. 3;

FIG. 6 is an enlarged view of area 6 of FIG. 4;

FIG. 7 is a top plan view as in FIG. 6 just before electric contact is made;

FIG. 8 is an enlarged bottom perspective view of a movable electric contactor making contact with a fixed electric contactor;

FIG. 9 is an enlarged top perspective view of the movable and fixed electric contactors;

FIG. 10 is an enlarged rear elevation view of a holder which carries the fixed contactor;

FIG. 11 is an enlarged rear elevation view of the holder adjusted so that the fixed electric contactor is in a different vertical position;

FIG. 12 is an enlarged front perspective view of the holder;

FIG. 13 is an enlarged perspective view of the holder in a reversed configuration;

FIG. 14 is an enlarged front perspective view of a door holder and movable electric contactor;

FIG. 15 is a cutaway view of the lighting system installed on a movable structure;

FIG. 16 is a schematic diagram of the lighting system;

FIG. 17 is an elevation view of the inside of a prior art sectional door showing the door in a closed substantially vertical position;

FIG. 18 is an elevation view of the inside of a prior art sectional door showing the door in an open substantially horizontal position;

FIG. 19 is an enlarged view of area 19 of FIG. 17;

FIG. 20 is a cross sectional view along the line 20-20 of FIG. 18 showing the sectional door in an open substantially horizontal overhead position;

FIG. 21 is an enlarged fragmented view in direction 21 of FIG. 19;

FIG. 22 is a perspective view of FIG. 21;

FIG. 23 is an enlarged view of area 23 of FIG. 20;

FIG. 24 is an elevation view of the inside of the sectional door showing the door in a transition position between the closed position of FIG. 17 and the open position of FIG. 18;

FIG. 25 is a cross sectional view along the line 25-25 of FIG. 24;

FIG. 26 is an enlarged view of area 26 of FIG. 25;

FIG. 27 is a perspective view of FIG. 26;

FIG. 28 is an enlarged cross sectional view along the line 28-28 of FIG. 19;

FIG. 29 is a top plan view of a bracket;

FIG. 30 is a side elevation view of the bracket;

FIG. 31 is a bottom plan view of the bracket; and,

FIG. 32 is a perspective view of the bracket.

FIG. 33 is an elevation view of the inside of a sectional door showing the door in a closed substantially vertical position;

FIG. 34 is a side elevation view of the sectional door showing the door in an open substantially horizontal position;

FIG. 35 is an enlarged view of area 35 of FIG. 33;

FIG. 36 is an enlarged view of area 36 of FIG. 34;

FIG. 37 is an enlarged bottom perspective view of a movable electric contactor making contact with a reciprocating electric contactor;

FIG. 38 is an enlarged top plan view of the movable electric contactor about to contact the reciprocating electric contactor;

FIG. 39 is an enlarged top plan view of the reciprocating electric contactor moved by the movable electrical contactor;

FIG. 40 is an enlarged top plan view of the reciprocating electric contactor moved in the opposite direction of FIG. 39;

FIG. 41 is an enlarged perspective view showing an electrical connection device;

FIG. 42 is an enlarged end view showing the electrical connection device connected to a track of the sectional door;

FIG. 43 is an enlarged perspective of the electrical connection device;

FIG. 44 is an enlarged exploded view of the electrical connection device;

FIG. 45 is an enlarged top plan view of the electrical connection device with the reciprocating electrical connector in a first position;

FIG. 46 is an enlarged top plan view of the electrical connection device with the reciprocating electrical connector in a second position; and,

FIG. 47 is an enlarged perspective view of the movable electric connector.

DETAILED DESCRIPTION OF THE INVENTION

Referring initially to FIG. 1 there is illustrated an elevation view of the inside of a prior art sectional door 500 showing the door in a closed substantially vertical position. FIG. 2 is a cross sectional view along the line 2-2 of FIG. 1 showing the sectional door in an open substantially horizontal overhead position. Sectional door 500 includes a plurality of connected panels 502 which roll along left 504 and right 506 tracks which are connected to a structure 600 (e.g. a building such as a garage or warehouse, or to a mobile structure (vehicle) such as a truck or delivery van). Each panel 502 has an inside surface 508. Panels 502 include a topmost panel 502T which has a top edge 512. Sectional door 500 is positionable to the closed position of FIG. 1, and to the open position of FIG. 2. It is noted that in the open position sectional door 500 blocks light coming from light fixtures 700. It is noted that a view in the opposite direction of FIG. 2 would be the mirror image.

FIG. 3 is an elevation view of the inside of the prior art sectional door 500 with a lighting system 20 installed, and FIG. 4 is a cross sectional view along the line 4-4 of FIG. 3. FIG. 5 is an enlarged view of area 5 of FIG. 3, FIG. 6 is an enlarged view of area 6 of FIG. 4, and FIG. 7 is a top plan view FIG. 6. Lighting system 20 includes a light 22 which is connectable to the inside surface 508 of a panel 502 of sectional door 500. As used herein the term “light” is defined as a device which produces light (e.g. a light bulb). In the shown embodiment, there are a plurality of lights 22, wherein one light 22 is connectable to each of the plurality of panels 502. Lights 22 are powered by a power supply 24. In an embodiment each light 22 includes a long strip (string) containing multiple lights (e.g. bulbs) which longitudinally extends along the panel 502. For a garage door application the strips can be about 16 feet long and therefore provide a large lighted area. The strips can be connected to the inside surface 508 of panel 502 with an adhesive or by other mechanical means. In an embodiment, light 22 includes a plurality of low voltage LED lights, such as high intensity daylight white 6000k 5050 LED chip light strips. These lights are powered by a 12 VDC 30A regulated power supply 24. Power supply 24 can be a separate unit as shown, or in some installations low voltage power can be taken from the door's motorized opening and closing mechanism. As used here the term low voltage means a voltage which is 0 to 49 volts.

Lighting system 20 further includes a movable electric contactor 26 which is connectable to a panel 502 (topmost panel 502T as shown) of sectional door 500. Lighting system 20 further includes a fixed electric contactor 28 which is connectable to the structure 600. As used herein the term “connectable to the structure” means either directly connectable or indirectly connectable. In the open position of the sectional door (FIGS. 4 and 6) movable electric contactor 26 is configured to contact fixed electric 28 contactor and thereby complete an electrical circuit which energizes light 22. In an embodiment the movable 26 and fixed 28 contactors are two pole low voltage electrical contacts. The contacts are made of metal and are longitudinally spring-biased to an extended position so that they maintain electrical contact with the opposing contacts (refer to small arrows on FIG. 7).

A holder 30 carries fixed contactor 28 (also refer to FIGS. 9-13). Holder 30 is shaped and dimensioned to removably connect to either the left track 504 or to the right track 506. In the shown embodiment, holder 30 is fixedly connected to track 504 or 506 with a bolt 31.

Referring specifically to FIGS. 5 and 6, movable electric contactor 26 is connectable to the topmost panel 502T of sectional door 500. In the shown embodiment a door holder 32 carries movable electric contactor 26. Door holder 32 is connectable to the top edge 512 of the topmost panel 502T such as with screws. Referring to FIG. 6, in the open position of sectional door 500, topmost panel 502T moves in the direction of the arrow so that movable electric contactor 26 contacts fixed electric contactor 28 to complete the lighting circuit. FIG. 7 shows moving contactor 26 moving in the direction of the arrow toward fixed contactor 28 just before the electrical connection is made.

Lighting system 20 further includes a wiring harness 34 which connects movable contactor 26 to light(s) 22. Harness 34 is mounted to the inside surface 508 of door panels 502 in such a way that it freely moves as the door panels 502 separate and transition from the vertical to horizontal position and back again during opening and closing operation. Harness 34 can be connected to the door panels 502 by an adhesive or other mechanical means.

FIG. 8 is an enlarged bottom perspective view of movable electric contactor 26 making contact with fixed electric contactor 28. Fixed electric contactor 28 is mounted to holder 30 which is connected to right track 506. Movable electric contactor 26 is mounted to door holder 32 which is connected to the top edge 512 of the topmost panel 502T of sectional door 500. Sectional door 500 is in the open horizontal overhead position wherein movable electric contactor 26 contacts fixed electric contactor 28 to complete the electrical circuit which energizes lights 22. Mutually perpendicular alignment axes X, Y, and Z are also shown (also refer to FIGS. 5 and 6).

FIG. 9 is an enlarged top perspective view of movable 26 and fixed 28 electric contactors. Movable contactor 26 is carried by door holder 32, and is connected by wiring harness 34 to lights 22 (refer also to FIG. 6). Fixed electric contactor 28 is carried by holder 30 and is electrically connected to low voltage power supply 24 (refer also to FIG. 6). Contactor 28 has prongs which receive a plug which is connected to power supply 24. Similarly contactor 26 has prongs which receive a plug connected to harness 34).

FIG. 10 is an enlarged rear elevation view of holder 30 which carries fixed contactor 28, and FIG. 11 is an enlarged rear elevation view of holder 30 adjusted so that fixed electric contactor 28 is in a different vertical position. Holder 30 is adjustable so that fixed electric contactor 28 is positionable to vertically align with movable electric contactor 26 (also refer to FIG. 6 and the double arrow of FIG. 12). In the shown embodiment the vertical adjustment is effected by two wing nuts 36. When loosened wing nuts 36 allow the bracket 38 upon which fixed electric contactor 28 is mounted to be vertically positioned so that fixed electric contactor 28 vertically aligns with movable electric contactor 26. This adjustment is necessary because the vertical position of sectional door 500 with respect to tracks 504 and 506 can vary from installation to installation (also refer to FIGS. 1 and 2).

FIG. 12 is an enlarged front perspective view of holder 30. Shown are fixed electric contactor 28, bolt 31, wing nuts 36, and bracket 38. It is noted that holder 30 has a body 39 which is configured to connect to left track 504 or right track 506 (in the shown embodiment body 39 partially fits around the tracks). A slide 37 is connected to body 39. Bracket 38 carries fixed electric contactor 28 and is connected to slide 37 by wing nuts 36. Bracket 38 is slidably connected to body 39 by slide 37 so that fixed electric contactor 28 is positionable (refer to arrows) to a desired vertical position. Also referring to FIG. 6, in an embodiment body 39 is shaped and dimensioned to fit over the end 514 of track 504 or 506.

FIG. 13 is an enlarged perspective view of holder 30 in a reversed configuration. Holder 30 is reversible so that it can be connected to either left track 504 or right track 506. In the shown embodiment, to reverse holder 30 the plastic housing of contactor 28 is disconnected from bracket 38, turned 180°, and reconnected on the opposite side of bracket 38.

FIG. 14 is an enlarged front perspective view of door holder 32 and movable electric contactor 26.

FIG. 15 is a cutaway view of lighting system 20 installed on the sectional door 500 of a movable structure 602 such as a truck or delivery van.

FIG. 16 is a schematic diagram of lighting system 20 showing power supply 24, movable contactor 26, fixed contactor 28, lights 22, and harness 34.

It may be appreciated that lighting system 20 can be combined with a sectional door to form a lighted structure 600/602.

Referring to FIGS. 5-6, movable electric contactor 26 and fixed electric contactor 28 must be aligned in three dimensions in order to make contact when sectional door 500 is in the open horizontal overhead position. In an embodiment, to effect this alignment the following procedure is used:

Now referring to FIGS. 17-23, there is illustrated an apparatus 50 for connecting a wiring harness 34 to a sectional door 500, the sectional door 500 having a plurality of panels 502 (four in the shown embodiment) in which adjacent panels 502 are connected by a hinge 503. The wiring harness 34 is connected to a plurality of lights 22. It is noted that in the shown embodiment two hinges 503 connect each pair of adjacent panels 502. The hinge 503 is connected to the adjacent panels by first and second hinge connectors 520 and 522 respectively (such as threaded bolts, threaded screws, rivets, or the like, refer to FIG. 19). It is noted that in the shown embodiment, four hinge connectors are actually used.

A first bracket 52 has a proximal end 54 and an opposite distal end 56, the distal end 56 is shaped and dimensioned to receive wiring harness 34. Proximal end 54 of first bracket 52 is connectable to hinge 503 by hinge connector 520. A second bracket 58 has a proximal end 60 and an opposite distal end 62, distal end 62 is shaped and dimensioned to receive wiring harness 34. Proximal end 60 of second bracket 58 is connectable to hinge 503 by second hinge connector 522. Also referring to FIGS. 29-32, the proximal ends 54 and 60 respectively of first bracket 52 and second bracket 58 are bifurcated. In the shown embodiment first hinge connector 520 and second hinge connector 522 are threaded connectors (such as bolts or screws). First bracket 52 is connected to hinge 503 by loosening first hinge connector 520, inserting the bifurcated proximal end 54 underneath the head of first hinge connector 520, and then re-tightening first hinge connector 520. Similarly, second bracket 58 is connected to hinge 503 by loosening second hinge connector 522, inserting the bifurcated proximal end 60 underneath the head of second hinge connector 522, and then re-tightening second hinge connector 522. It is noted that two brackets are similarly connected to each of the other hinges 503 on one side of sectional door 500 (three total as shown).

The distal end 56 of first bracket 52 and the distal end 62 of second bracket 58 are each configured to fixedly connect to wiring harness 34. That is, harness 34 is connected to the brackets so that it cannot longitudinally move, and so that a segment of wiring harness 34 is connected between the two brackets. Also referring to FIGS. 28-32, to accomplish this, a first connector 64 is configured to connect wiring harness 34 to distal end 56 of first bracket 52. The distal end 56 of first bracket 52 includes two apertures 66. First connector 64 is positioned through the two apertures 66 in distal end 56 of first bracket 52, wrapped around wiring harness 34, and connected to itself to firmly connect wiring harness 34 to first bracket 52. Similarly a second connector 68 is configured to connect wiring harness 34 to distal end 62 of second bracket 58. The distal end 62 of second bracket 58 includes two apertures 70. Second connector 68 is positioned through the two apertures 70 in distal end 62 of second bracket 58, wrapped around wiring harness 34, and connected to itself to firmly connect wiring harness 34 to second bracket 58.

In the shown embodiment, first connector 66 and second connector 68 are zip-ties.

In FIG. 19 it is noted that adjacent panels 502 each have a horizontal edge 507 and 509. First bracket 52 has a first longitudinal axis 72 and second bracket 58 has a second longitudinal axis 74. First longitudinal axis 72 and second longitudinal axis 74 are both disposed parallel to the horizontal edges 507 and 509 of the adjacent panels 502.

FIG. 24 is an elevation view of the inside of the sectional door 500 showing the door in a transition position between the closed position of FIG. 17 and the open position of FIG. 18. FIG. 25 is a cross sectional view along the line 25-25 of FIG. 24 showing sectional door 500 in a transition position between the closed position of FIG. 17 and the open position of FIG. 18. In this position it is noted that adjacent panels 502 form an angle. FIG. 26 is an enlarged view of area 26 of FIG. 25, and FIG. 27 is a perspective view of FIG. 26. It is noted that in the transition position the segment of wiring harness 34S which is located between first bracket 52 and second bracket 58 bends. However, the segments of wiring harness 34 which are located outside of the brackets do not move or bend. Because first connector 64 fixedly connects wiring harness 34 to first bracket 52, and second connector 68 fixedly connects wiring harness 34 to second bracket 58, the brackets confine wiring harness 34 movement (i.e. bending) to the segment 34S located between the brackets, and thereby relieve any strain on the segments of wiring harness 34 which are not between the brackets. This strain relief feature ensures that the connection of wiring harness 34 to lights 22 will not be strained when sectional door 500 moves between its closed and open positions. In the shown embodiment, connectors 64 and 68 are zip ties, however other connectors such as wire, tape, belts, string, clamps, clips, or the like could also be utilized so long as they provide a firm connection of wiring harness 34 to the brackets.

FIG. 28 is an enlarged cross sectional view along the line 28-28 of FIG. 19, showing the connection of wiring harness 34 to first bracket 52 (58). First connector 64 (68) wraps around wiring harness 34, passes through apertures 66 (70), and connects to itself. It is noted that first bracket 52 (58) has a first groove 76 (78) which is shaped and dimensioned to receive wiring harness 34, and thereby provide a tighter connection with first bracket 52 (58). Since in the shown embodiment first bracket 52 and second bracket 58 are the same, in the above description the parenthetical reference numerals apply to second bracket 58. Also, in FIG. 28, the second number applies to second bracket 58.

FIGS. 29-32 show views of first bracket 52 and second bracket 58. In the shown embodiment first bracket 52 and second bracket 58 are identical, so second bracket 58 is also depicted as the second number. It is noted that proximal end 54 of first bracket 52 and of the proximal end 60 of second bracket 58 are bifurcated. The distal end 56 of first bracket 52 has a first groove 76 which is shaped and dimensioned to partially receive the wiring harness 34. The distal end 62 of the second bracket 58 has a second groove 78 which is shaped and dimensioned to partially receive the wiring harness 34. And, the distal end 56 of first bracket 52 has two apertures 66, and the distal end 62 of second bracket 58 has two apertures 70.

It may be appreciated that apparatus 20 may be combined with sectional door 500 to form a system for connecting a wiring harness to a sectional door.

In terms of use, a method for connecting a wiring system includes (refer to FIGS. 17-32):

(a) providing a sectional door 500 having a plurality of panels 502 in which adjacent panels 500 are connected by a hinge 503, the hinge 503 is connected to the adjacent panels 500 by first 520 and second 522 hinge connectors;

(b) providing a wiring harness 34;

(c) providing apparatus 20 for connecting the wiring harness 34 to the sectional door 500, including:

-   -   a first bracket 52 having a proximal end 54 and an opposite         distal end 56, the distal end 56 is shaped and dimensioned to         receive the wiring harness 34;     -   a second bracket 58 having a proximal end 60 and an opposite         distal end 62, the distal end 62 is shaped and dimensioned to         receive the wiring harness 34;     -   a first connector 64;     -   a second connector 68;

(d) using the first hinge connector 520 to connect the proximal end 54 of the first bracket 52 to the hinge 503;

(e) using the second hinge connector 522 to connect the proximal end 60 of the second bracket 58 to the hinge 503;

(f) using the first connector 64 to connect the wiring harness 34 to the distal end 56 of the first bracket 52; and,

(g) using the second connector 68 to connect the wiring harness 34 to the distal end 62 of the second bracket 58.

The method further including:

in (a), the sectional door 500 having a closed position; and,

prior to (f) and (g) placing the sectional door 500 in the closed position.

The method further including:

in (c), the distal end 56 of the first bracket 52 having a first groove 76 which is shaped and dimensioned to partially receive the wiring harness 34;

during (f), positioning the wiring harness 34 in the first groove 76;

in (c), the distal end 62 of the second bracket 58 having a second groove 78 which is shaped and dimensioned to partially receive the wiring harness 34; and,

during (g), positioning the wiring harness 34 in the second groove 78.

The method further including:

in (c), the first connector 64 being a zip tie; and,

in (c), the second connector 68 being a zip tie.

The method further including:

in (a), the sectional door having a plurality of hinges 503; and,

repeating (a) through (g) for each hinge 503 of the plurality of hinges 503.

As applicable, the order of performance of the above cited method steps can be changed.

FIG. 33 is an elevation view of the inside of a sectional door 500 showing the door positioned to a closed substantially vertical position, and FIG. 34 is a side elevation view of the sectional door 500 showing the door positioned to an open substantially horizontal position. Sectional door 500 has a plurality of connected panels 502 which roll along left 504 and right 506 tracks which are connected to a structure 600 (refer to FIG. 1). Each panel 502 has an inside surface 508. Panels 502 include a topmost panel 502T. It is noted that a view in the opposite direction of FIG. 34 would be the mirror image. A light 22 is connectable to the inside surface 508 of a panel 502 of the sectional door 500. In the shown embodiment, lights 22 are connected to the inside surface 508 of each panel 502.

Referring to FIGS. 35 and 36, a movable electric contactor 26 is connectable to a panel 502 of sectional door 500. In the shown embodiment, movable contactor 26 is connected to topmost panel 502T by a door holder (bracket) 32 which is connectable at the top of topmost panel 502T (also refer to FIG. 47). An electrical connection device for a sectional door 120 includes a reciprocating electric contactor 28R which is connected to a slide 80. A housing 82 carries slide 80, wherein slide 80 is configured to move back and fourth along housing 82. Housing 82 has a proximal end 84 and an opposite distal end 86 (refer also to FIG. 43), and is shaped and dimensioned to connect to either the left track 504 or to the right track 506 of the sectional door 500 (refer to FIGS. 33 and 34). Housing 82 includes a spring 87 which biases slide 80 (and reciprocating electric contactor 28R) toward distal end 86 of housing 82. In the open position of sectional door 500, movable electric contactor 26 contacts reciprocating electric contactor 28R and energizes light 22.

FIG. 37 is an enlarged bottom perspective view of movable electric contactor 26 making contact with reciprocating electric contactor 28R. Electrical connection device 120 is connected to one of the tracks of sectional door 500. In the shown embodiment electrical connection device 120 is connected to the right track 506. Sectional door 500 is in the open position wherein movable electric contactor 26 which is connected to the topmost panel 502T of sectional door 500 moves and contacts reciprocating electric contactor 28R which is carried by slide 80 which moves within housing 82. The reciprocating nature of slide 80 ensures that reciprocating electric contactor 28R always maintains contact with movable electric contactor 26.

FIG. 38 is an enlarged top plan view of movable electric contactor 26 about to contact reciprocating electric contactor 28R, and FIG. 39 is an enlarged top plan view of reciprocating electric contactor 28R being moved by movable electrical contactor 26 (overshoot), and FIG. 40 is an enlarged top plan view of the reciprocating electric contactor 28R moved in the opposite direction of FIG. 39 to the normal open position. When sectional door 500 is opened the door can initially travel to the overshoot position of FIG. 39 along the track (right track 506 as shown) before settling into its ultimate open position (FIG. 40). As such, the movable contactor 26 makes forceful contact with the contactor which is connected to the track. If the contactor connected to the track was hard mounted, damage to the contactors would result. This problem is eliminated by utilizing reciprocating electric contactor 28R. Reciprocating electric contactor 28R is not fixed to the track, but rather is free to move back and forth to accommodate the overshoot of sectional door 500 (refer to FIG. 39). Put another way, during opening of sectional door 500 movable electric contactor 26 overshoots the open position (FIG. 39). The reciprocating electric contactor 28R ensures that the overshoot does not cause mechanical damage to either movable electric contactor 26 or reciprocating electric contactor 28R. Moreover, the biasing of slide 80 (and reciprocating electric contactor 28R) ensures contact between movable electric contactor 26 and reciprocating electric contactor 28R is maintained. Also it is noted in FIG. 38 that housing 82 has a longitudinal axis 83. Housing 82 is connectable to the left track 504 or to the right track 506 (refer to FIG. 33) so that longitudinal axis 83 is parallel to the left 504 track or to the right track 506.

FIG. 41 is an enlarged perspective view showing electrical connection device 120. Housing 82 includes a bracket 88 which is shaped and dimensioned to connect to the track (right track 506 as shown) of sectional door 500 (also refer to FIG. 42 and the associated discussion). In the shown embodiment, bracket 88 is bolted or screwed to a desired location along the track 506 (also refer to FIG. 42). Housing 82 is removably positionable and lockable to a desired position along either the left track 504 or the right track 506 (also refer to FIG. 33). Also shown is electrical contactor 26 which is carried by door holder 32.

FIG. 42 is an enlarged end view showing electrical connection device 120 connected to a track 506 of sectional door 500 (refer to FIG. 33). Bracket 88 is connected to track 506 so that housing 82 is parallel to the track. Slide 80 which carries reciprocating electric contactor 28R slides along housing 82. In the shown embodiment, bracket 88 is connected to track 506 by two bolts.

FIGS. 43 and 44 are enlarged perspective and enlarged exploded views respectively of of electrical connection device 120. Electrical connection device 120 includes housing 82 which in the shown embodiment has a tubular body with a longitudinal slot 90. Slide 80 has a cylindrical body which is shaped and dimensioned to slide within the tubular body of housing 82. Slide 80 has a neck 92 (also refer to FIG. 42) which is shaped and dimensioned to be received by and slide along longitudinal slot 90. Spring 87 is disposed within housing, and biases slide 80 toward distal end 86 of housing 82 (as is indicated by the arrow). In an embodiment, spring 87 is a compression spring. Slide 80 moves along slot 90 to accommodate the overshoot of sectional door 500 (refer to FIG. 33). Spring 87 ensures that during the overshoot of sectional door 500, reciprocating electric contactor 28R always maintains contact with movable electric contact 26 (refer to FIGS. 38 and 39). Housing 82 has a longitudinal axis 83.

FIG. 45 is an enlarged top plan view of electrical connection device 120 with reciprocating electrical connector 28R in a first position, and FIG. 46 is an enlarged top plan view of electrical connection device 120 with reciprocating electrical connector 28R in a second position. Spring 87 abuts and biases slide 80 toward distal end 86. When sectional door 500 (refer to FIG. 33) is opened, slide 80 is pushed toward proximal end 84 of housing 82 by electric contactor 26 which contacts reciprocating electric contactor 28R (refer also to FIGS. 38 and 39). Slide 80 in turn compresses spring 87. When sectional door 500 moves back away from electrical connection device 120 (settles in to the open position), spring 87 pushes slide 80 back toward movable electric contactor 26 (refer to FIGS. 38 and 39). The biasing action of spring 87 keeps movable electric contactor 26 in contact with reciprocating electric contactor 28R.

FIG. 47 is an enlarged perspective view of movable electric connector 26. Moveable electric contactor 26 is carried by a door holder 32 (bracket) which is connected to topmost panel 502T of sectional door 500.

It may be appreciated that electrical connection device 120 may be combined with a light to form a lighting system for a sectional door 500.

The embodiments of the electrical connection device and lighting system for a sectional door described herein are exemplary and numerous modifications, combinations, variations, and rearrangements can be readily envisioned to achieve an equivalent result, all of which are intended to be embraced within the scope of the appended claims. Further, nothing in the above-provided discussions of the electrical connection device and lighting system should be construed as limiting the invention to a particular embodiment or combination of embodiments. The scope of the invention is defined by the appended claims. 

I claim:
 1. An electrical connection device for a sectional door, the sectional door having a plurality of connected panels which roll along left and right tracks which are connected to a structure, the sectional door is positionable to a closed position and to an open position, the electrical connection device, comprising: a slide; a reciprocating electric contactor connected to said slide; a housing which carries said slide, said housing having a proximal end and an opposite distal end, said housing including a spring which biases said slide toward said distal end of said housing, said housing being connectable to either the left track or to the right track of the sectional door.
 2. The electrical connection device according to claim 1, further including: said housing having a tubular body with a longitudinal slot; and, said slide having a cylindrical body which is shaped and dimensioned to slide within said tubular body.
 3. The lighting system according to claim 1, further including: said housing having a longitudinal axis; and, said housing connectable to the left track or to the right track so that said longitudinal axis is parallel to the left track or to the right track.
 4. The electrical connection device according to claim 1, further including: said slide having a neck which is shaped and dimensioned to be received by and slide along said longitudinal slot.
 5. The electrical connection device according to claim 1, further including: said spring being a compression spring.
 6. The electrical connection device according to claim 1 further including: said housing being positionable and lockable to a desired position along either the left track or the right track.
 7. The electrical connection device according to claim 1, further including: said housing having a tubular body with a longitudinal slot; said slide having a cylindrical body which is shaped and dimensioned to slide within said tubular body; said housing having a longitudinal axis; said housing configured to connect to the left track or to the right track so that said longitudinal axis is parallel to the left track or to the right track said slide having a neck which is shaped and dimensioned to be received by and slide along said longitudinal slot; said spring being a compression spring; and, said housing being positionable and lockable to a desired position along either the left track or the right track.
 8. A lighting system for a sectional door having a plurality of connected panels which roll along left and right tracks which are connected to a structure, each panel having an inside surface, the sectional door is positionable to a closed position and to an open position, the lighting system comprising: a light which is connectable to the inside surface of a panel of the sectional door; a movable electric contactor which is connectable to a panel of the sectional door; a reciprocating electric contactor, which is connectable to either the left track or to the right track, said reciprocating electric contactor biased toward said movable electric contactor; and, in the open position of the sectional door said movable electric contactor contacts said reciprocating electric contactor and energizes said light.
 9. The lighting system according to claim 8, further including: a slide, said reciprocating electric contactor connected to said slide; and, a housing which carries said slide, said housing having a proximal end and an opposite distal end, said housing being connectable to either the left track or to the right track of the sectional door, said housing including a spring which biases said slide toward said distal end of said housing.
 10. The lighting system according to claim 9, further including: said housing having a tubular body with a longitudinal slot; and, said slide having a cylindrical body which is shaped and dimensioned to slide within said tubular body.
 11. The lighting system according to claim 9, further including: said housing having a longitudinal axis; and, said housing connectable to the left track or to the right track so that said longitudinal axis is parallel to the left track or to the right track.
 12. The lighting system according to claim 9, further including: said slide having a neck which is shaped and dimensioned to be received by and slide along said longitudinal slot.
 13. The lighting system according to claim 9, further including: said spring being a compression spring.
 14. The lighting system according to claim 9, further including: said housing being positionable and lockable to a desired position along either the left track or the right track.
 15. The lighting system according to claim 8, the sectional door including a topmost panel, the lighting system further including: a door holder which carries said movable electric contactor, said door holder is connectable to the topmost panel.
 16. The lighting system according to claim 8, further including: during opening of the sectional door said movable electric contactor overshooting the open position; and, said reciprocating electric contactor ensuring that said overshoot does not cause mechanical damage to either said movable electric contactor or said reciprocating electric contactor.
 17. The lighting system according to claim 8, further including: said biasing of said reciprocating electric contactor ensuring that contact between said movable electric contactor and said reciprocating electric contactor is maintained.
 18. The lighting system according to claim 8, the sectional door including a topmost panel, the lighting system further including: a slide, said reciprocating electric contactor connected to said slide; a housing which carries said slide, said housing having a proximal end and an opposite distal end, said housing being connectable to either the left track or to the right track of the sectional door, said housing including a spring which biases said slide toward said distal end of said housing; said housing having a tubular body with a longitudinal slot; said slide having a cylindrical body which is shaped and dimensioned to slide within said tubular body; said housing having a longitudinal axis; said housing connectable to the left track or to the right track so that said longitudinal axis is parallel to the left track or to the right track; said slide having a neck which is shaped and dimensioned to be received by and slide along said longitudinal slot; said spring being a compression spring; said housing being positionable and lockable to a desired position along either the left track or the right track; a door holder which carries said movable electric contactor, said door holder is connectable to the topmost panel; said reciprocating electric contactor ensuring that said overshoot does not cause mechanical damage to either said movable electric contactor or said reciprocating electric contactor; and, said biasing of said reciprocating electric contactor ensuring that contact between said movable electric contactor and said reciprocating electric contactor is maintained. 